Window having coupled sashes



Jan. 9, 1940. E. s. PERSSON v WINDOW HIWING COUPLED SASHES Filed NOV.10, 1937 r z.. a

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E. S. PERssoN Patented Jan. 9, 1940 UNITED. 1 STATES PATENT OFFICE wmnownAvING COUPLED SASHES Eric Sigfrid Persson, Malmo, Sweden ApplicationNovember 10, 1937, Serial No. 173,903

In Sweden FebruaryZO, 1937 4 Claims. (01. 20-53) inwindows havingcoupled sashes. I The main object of my invention is to provide a windowof the type' referred to, and of such design as to make both surfaces ofthe two panes My present invention relates to improvements of the windoweasily available from within the room in order to facilitate thecleaningand polishing of said surfaces. With this main' object in view,the windowaccording to my invention is characterized by the fact, thatthe sash positioned on the outside when the window is in itsclosed'position, is hingedly connected to the inner sash at the loweredge-of said sashes, said inner sash being rotatabletol5 gether with theouter sash, which is mountedfto be rotated in the windoW-openingabouthorizontal pivots provided approximatelyat the mid I dle of the heightof the window, or'preferably slightly below said level, the rotation ofthe com the vertical members of the window-sashes facing each other,said recesses housing struts pivoted at one end to one of the sashes,and at-the other end tothe other sash, and serving to main- 35 tain theouter sash separated from the inner sash, when the window occupies itsturned-over position.

An embodiment of the invention is illustrated, by way of example, in theaccompanying draw- 4 ing, in which:

Fig. 1 shows a window according to the invention in closed position andviewed from within the room,

Fig. 2. shows, on an enlarged scale, a vertical 45 sectional .view online IIII of Fig. 1, with the window in its closed position,

Fig. 3 shows a similar vertical sectional view with the windowturned-over, and with the outer window-sash separated from. the innerone, i g

50 Fig. 4 shows, on an enlarged scale, a detail horizontal sectionalView through the windowframe and the window-sashes on line IV-IV of Fig.1, and

Fig. 5 shows a similar sectional view on line 55 Of Fig. 1. i

--In the drawing, I is a window-frame, in the opening of which a, windowhaving coupled sashes 2 and 3'is, rotatable about a horizontal axis in adirection to move its upper edge into the room.

The window is rotatable on hinges comprising 5 two horizontal pivotstuds4 secured to the inner sash 2, and'bearingmeans 5 for said studs 4 securedto the Window-frame I. The pivot studs 4 are positionedapproximately in the plane of the inner surface of the inner sash 2 andslightly 10'- below the central-line between the upper and lower edgesof the window, so as to enable the coupled sashesto be swung roundapproximately half a revolution about the pivot studs 4, the upper edgesof'the sashes thereby moving inwards 1 5 and downwards and the windowbeing positioned substantially inside] the window-opening uponcompletion of said swinging movement.

The two coupledwindow-sashes 2, 3 are connected to each other by meansof hinges 6 at the lower edge of the'window when closed (i. e., the

' edge parallel to the axis of rotation 4-4 and nearest. to said axis),and at the opposite edges the sashes are coupledby means of couplingcatches .1 adapted to be operated bypins, or shafts, projecting fromthejoint between the two sashes. The two sashes 2,. 3 are provided inthose members perpendicular to the axis of rotation 4-4, and in thesurfaces of said members facing each other, with longitudinal recesses8, ID in which-struts 9 are positioned, said struts being pivotally and.displaceably connected at one end to one of the sashes and pivotallyconnected at the other end to the other sash, and serving to retain theouter sash 3 in a position separated from the inner sash, as shown inFig. 3.

The two vertical joints between the Windowframe and the sashes arecovered by tightening, or caulking, ribs the portions l2 of saidribssituated above the pivot studs 4 being fixedly connected to theinner sash 2 and, for instance, provided with a longitudinal projection,or a flange, l3 (Fig. 4) extending into a groove l4 provided in thewindow-frame, while the portions l5 of said tightening ribs are securedto the frame I and have a longitudinal projection l6 engaging a grooveI! in the inner sash 2 (Fig. 5). The window is retained in a closedposition by means of a locking device I8 or an espagnolet.

It should be obvious from the above description that, when desirable toclean or polish the window, said window ought to be rotatedapproximately on its horizontal studs 4, the-outside of the outerpanethen facing towards the interior of theroom and being easilyaccessible from within said room. When it is desired to polish thesurfaces of the panes facing each other in the two sashes, the catches Iare released and the outer sash 3 separated from the inner one byrotating it upwards about the hinges 6, as shown in Fig. 3, the surfacesof the panes facing each other then being easily polished from withinthe room.

I claim:

1. A window comprising a frame, an inner sash adapted to fit in saidframe, lugs extending inwardly from said frame and sash, studsconnecting the inner ends of said lugs for connecting the sash to saidframe for pivotal movement about an axis spaced inwardly from saidframe, an outer sash juxtaposed to said inner sash, a hinge connectingthe lower edges of said inner and outer sashes, said lugs beingpositioned ata point slightly below the middle of the height of saidsash and frame so that both of said sashes may be rotated as a unitabout the pivotal axis through an angle of approximately 180 to bringboth sashes on the inner side of the room with the hinge at the top, andmeans for detachably coupling the non-hinged horizontal edges of saidsashes to enable them tobe separated when on the inner side of the framefor access to the facing surfaces of the sash.

2. A window comprising a frame, an inner sash adapted to fit in saidframe, lugs extending inwardly from said frame and sash, studsconnecting the inner ends of said lugs for connecting the sash to saidframe for pivotal movement about an axis spaced inwardly from saidframe, an outer sash juxtaposed to said inner sash, a hinge connectingthe lower edges of said inner and outer sashes, said lugs beingpositioned at a point slightly below the middle of the height of saidsash and frame so that both of said sashes may be rotated as a unitabout the pivotal axis through an angle of approximately 180 to bringboth sashes on the inner side of the room with the hinge at the top, andmeans for detachably coupling the non-hinged horizontal edges of saidsashes to enable them to be separated when on the inner side of theframe for access tothe secured to said frame and for connecting the sashto said frame for pivotal movement about a horizontal axis, an outersash juxtaposed to said inner sash, a hinge connecting the lower edgesof said inner and outer sashes, said pivot means being positioned at apoint slightly below the middle of the height of said sash and frame sothat both of said sashes may be rotated as a unit about the pivotal axisthrough an angle of approximately 180 to bring both sashes on the innerside of the room with the hinge at the top, and means for detachablycoupling the non-hinged horizontal edges of said sashes to enable themto be separated when on the inner side of the frame for access to thefacing surfaces of the sash.

4. A window comprising a frame, an inner sash adapted to fit in saidframe, pivot means secured to said frame and for connecting the sashtosaid frame for pivotal movement about a horizontal axis, an outer sashjuxtaposed to said inner sash, a hinge connecting the lower edges ofsaid inner and outer sashes, said pivot means being positioned at apoint slightly below the middle of the height of said sash and frame sothat both of said sashes may be rotated as a unit about the pivotal axisthrough an angle of approximately 180 to bring both sashes on the innerside of the room with the hinge at the top, and means for detachablycoupling the non-hinged horizontal edges of said sashes to enable themto be separated when on the inner side of the frame for access to thefacing surfaces of the sash, the vertical members of said sashes havingrecesses in the surfaces facing each other and struts housed in saidrecesses, said struts being operable to hold said sashes spaced apartwhen uncoupled.

, ERIC SIGFRID PERSSON.

